Gallon Pump Dispenser for 1 Gallon and 1/2 Gallon Jug Bottles. Fits Most Containers: 1 Gallon Neck Finish 38-400 | 11.5 inches Dip Tube Length Can be Trimmed to Fit Shorter Containers. 1/2 Gallon Neck Finish 38-400 | 9.5 inches Dip Tube Length Can be Trimmed to Fit Shorter Containers Additional Details ------------------------------ Product description: Gallon Pump Dispenser for 1 Gallon and 1/2 Gallon Jug Bottles. Fits Most Containers: 1 Gallon Neck Finish 38-400 | 11.5 inches Dip Tube Length Can be Trimmed to Fit Shorter Containers. 1/2 Gallon Neck Finish 38-400 | 9.5 inches Dip Tube Length Can be Trimmed to Fit Shorter Containers